/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.antgroup.geaflow.state.pushdown;

import com.antgroup.geaflow.utils.keygroup.KeyGroup;

public class KeyGroupStatePushDown<K, T, R> extends StatePushDown<K, T, R> {

    private KeyGroup keyGroup;

    private KeyGroupStatePushDown() {}

    public static KeyGroupStatePushDown of() {
        return new KeyGroupStatePushDown();
    }

    public static KeyGroupStatePushDown of(KeyGroup keyGroup) {
        return new KeyGroupStatePushDown().withKeyGroup(keyGroup);
    }

    public static KeyGroupStatePushDown of(StatePushDown statePushDown) {
        KeyGroupStatePushDown pushDown = new KeyGroupStatePushDown();
        pushDown.filter = statePushDown.filter;
        pushDown.edgeLimit = statePushDown.edgeLimit;
        pushDown.filters = statePushDown.filters;
        pushDown.orderFields = statePushDown.orderFields;
        pushDown.projector = statePushDown.projector;
        pushDown.pushdownType = statePushDown.pushdownType;
        return pushDown;
    }

    public KeyGroup getKeyGroup() {
        return keyGroup;
    }

    public KeyGroupStatePushDown<K, T, R> withKeyGroup(KeyGroup keyGroup) {
        this.keyGroup = keyGroup;
        return this;
    }
}
